Form: EFFECT

Notice of Effectiveness

August 29, 2025

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Notice of Effectiveness

Effectiveness Date: August 29, 2025
Accession Number: 0001213900-25-078746
Submission Type: POS AM
CIK: 0000316253
Company Name: ENZO BIOCHEM INC
File Number: 333-271911